Sarah Bajc's partner, Philip Wood, disappeared along with Flight MH370. "The issuance of the death certificate is an emotional thing," she says, "because we're not convinced that they're dead." Mohd Rasfan/AFP/Getty Images hide caption

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A visitor walks through the Memorial to the Murdered Jews of Europe, also known as the Holocaust Memorial, in Berlin, Germany. Sean Gallup/Getty Images hide caption

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An elephant at the Emmen, Netherlands, zoo stands at the edge of a ditch in 2009, a day after another elephant fell into the ditch and died. Olaf Kraak/AFP/Getty Images hide caption

itoggle caption Olaf Kraak/AFP/Getty Images